Class HandlerSubscriber<T>

java.lang.Object
io.netty.channel.ChannelHandlerAdapter
io.netty.channel.ChannelInboundHandlerAdapter
io.netty.channel.ChannelDuplexHandler
software.amazon.awssdk.http.nio.netty.internal.nrs.HandlerSubscriber<T>
All Implemented Interfaces:
io.netty.channel.ChannelHandler, io.netty.channel.ChannelInboundHandler, io.netty.channel.ChannelOutboundHandler, org.reactivestreams.Subscriber<T>
@SdkInternalApi public class HandlerSubscriber<T> extends io.netty.channel.ChannelDuplexHandler implements org.reactivestreams.Subscriber<T>
Subscriber that publishes received messages to the handler pipeline. This class contains source imported from https://github.com/playframework/netty-reactive-streams, licensed under the Apache License 2.0, available at the time of the fork (1/31/2020) here: https://github.com/playframework/netty-reactive-streams/blob/master/LICENSE.txt All original source licensed under the Apache License 2.0 by playframework. All modifications are licensed under the Apache License 2.0 by Amazon Web Services.

  • Nested Class Summary

    Nested classes/interfaces inherited from interface io.netty.channel.ChannelHandler

    io.netty.channel.ChannelHandler.Sharable

  • Constructor Summary

    Constructors
    Constructor
    Description
    HandlerSubscriber(io.netty.util.concurrent.EventExecutor executor)
    Create a new handler subscriber with the default low and high watermarks.
    HandlerSubscriber(io.netty.util.concurrent.EventExecutor executor, long demandLowWatermark, long demandHighWatermark)
    Create a new handler subscriber.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    channelActive(io.netty.channel.ChannelHandlerContext ctx)
     
    void
    channelInactive(io.netty.channel.ChannelHandlerContext ctx)
     
    void
    channelRegistered(io.netty.channel.ChannelHandlerContext ctx)
     
    void
    channelWritabilityChanged(io.netty.channel.ChannelHandlerContext ctx)
     
    void
    exceptionCaught(io.netty.channel.ChannelHandlerContext ctx, Throwable cause)
     
    void
    handlerAdded(io.netty.channel.ChannelHandlerContext ctx)
     
    void
    handlerRemoved(io.netty.channel.ChannelHandlerContext ctx)
     
    void
    onComplete()
     
    void
    onError(Throwable error)
     
    void
    onNext(T t)
     
    void
    onSubscribe(org.reactivestreams.Subscription subscription)
     

    Methods inherited from class io.netty.channel.ChannelDuplexHandler

    bind, close, connect, deregister, disconnect, flush, read, write

    Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

    channelRead, channelReadComplete, channelUnregistered, userEventTriggered

    Methods inherited from class io.netty.channel.ChannelHandlerAdapter

    isSharable

    Methods inherited from class java.lang.Object

    equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • HandlerSubscriber

      public HandlerSubscriber(io.netty.util.concurrent.EventExecutor executor, long demandLowWatermark, long demandHighWatermark)
      Create a new handler subscriber. The supplied executor must be the same event loop as the event loop that this handler is eventually registered with, if not, an exception will be thrown when the handler is registered.
      Parameters:
      executor - The executor to execute asynchronous events from the publisher on.
      demandLowWatermark - The low watermark for demand. When demand drops below this, more will be requested.
      demandHighWatermark - The high watermark for demand. This is the maximum that will be requested.

    • HandlerSubscriber

      public HandlerSubscriber(io.netty.util.concurrent.EventExecutor executor)
      Create a new handler subscriber with the default low and high watermarks. The supplied executor must be the same event loop as the event loop that this handler is eventually registered with, if not, an exception will be thrown when the handler is registered.
      Parameters:
      executor - The executor to execute asynchronous events from the publisher on.
      See Also:

  • Method Details

    • handlerAdded

      public void handlerAdded(io.netty.channel.ChannelHandlerContext ctx) throws Exception
      Specified by:
      handlerAdded in interface io.netty.channel.ChannelHandler
      Overrides:
      handlerAdded in class io.netty.channel.ChannelHandlerAdapter
      Throws:
      Exception

    • channelRegistered

      public void channelRegistered(io.netty.channel.ChannelHandlerContext ctx) throws Exception
      Specified by:
      channelRegistered in interface io.netty.channel.ChannelInboundHandler
      Overrides:
      channelRegistered in class io.netty.channel.ChannelInboundHandlerAdapter
      Throws:
      Exception

    • channelWritabilityChanged

      public void channelWritabilityChanged(io.netty.channel.ChannelHandlerContext ctx) throws Exception
      Specified by:
      channelWritabilityChanged in interface io.netty.channel.ChannelInboundHandler
      Overrides:
      channelWritabilityChanged in class io.netty.channel.ChannelInboundHandlerAdapter
      Throws:
      Exception

    • channelActive

      public void channelActive(io.netty.channel.ChannelHandlerContext ctx) throws Exception
      Specified by:
      channelActive in interface io.netty.channel.ChannelInboundHandler
      Overrides:
      channelActive in class io.netty.channel.ChannelInboundHandlerAdapter
      Throws:
      Exception

    • channelInactive

      public void channelInactive(io.netty.channel.ChannelHandlerContext ctx) throws Exception
      Specified by:
      channelInactive in interface io.netty.channel.ChannelInboundHandler
      Overrides:
      channelInactive in class io.netty.channel.ChannelInboundHandlerAdapter
      Throws:
      Exception

    • handlerRemoved

      public void handlerRemoved(io.netty.channel.ChannelHandlerContext ctx) throws Exception
      Specified by:
      handlerRemoved in interface io.netty.channel.ChannelHandler
      Overrides:
      handlerRemoved in class io.netty.channel.ChannelHandlerAdapter
      Throws:
      Exception

    • exceptionCaught

      public void exceptionCaught(io.netty.channel.ChannelHandlerContext ctx, Throwable cause) throws Exception
      Specified by:
      exceptionCaught in interface io.netty.channel.ChannelHandler
      Specified by:
      exceptionCaught in interface io.netty.channel.ChannelInboundHandler
      Overrides:
      exceptionCaught in class io.netty.channel.ChannelInboundHandlerAdapter
      Throws:
      Exception

    • onSubscribe

      public void onSubscribe(org.reactivestreams.Subscription subscription)
      Specified by:
      onSubscribe in interface org.reactivestreams.Subscriber<T>

    • onNext

      public void onNext(T t)
      Specified by:
      onNext in interface org.reactivestreams.Subscriber<T>

    • onError

      public void onError(Throwable error)
      Specified by:
      onError in interface org.reactivestreams.Subscriber<T>

    • onComplete

      public void onComplete()
      Specified by:
      onComplete in interface org.reactivestreams.Subscriber<T>